2 # Cookbook:: prometheus
3 # Resource:: prometheus_exporter
5 # Copyright:: 2020, OpenStreetMap Foundation
7 # Licensed under the Apache License, Version 2.0 (the "License");
8 # you may not use this file except in compliance with the License.
9 # You may obtain a copy of the License at
11 # https://www.apache.org/licenses/LICENSE-2.0
13 # Unless required by applicable law or agreed to in writing, software
14 # distributed under the License is distributed on an "AS IS" BASIS,
15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 # See the License for the specific language governing permissions and
17 # limitations under the License.
20 default_action :create
22 property :exporter, :kind_of => String, :name_property => true
23 property :port, :kind_of => Integer, :required => [:create]
24 property :listen_switch, :kind_of => String, :default => "web.listen-address"
25 property :listen_type, :kind_of => String, :default => "address"
26 property :user, :kind_of => String, :default => "root"
27 property :command, :kind_of => String
28 property :options, :kind_of => [String, Array]
29 property :environment, :kind_of => Hash, :default => {}
30 property :service, :kind_of => String
31 property :metric_relabel, :kind_of => Array
34 systemd_service service_name do
35 description "Prometheus #{new_resource.exporter} exporter"
37 user new_resource.user
38 environment new_resource.environment
39 exec_start "#{executable_path} #{new_resource.command} #{executable_options}"
41 protect_system "strict"
43 no_new_privileges true
46 service service_name do
47 action [:enable, :start]
48 subscribes :restart, "systemd_service[#{service_name}]"
51 firewall_rule "accept-prometheus-#{new_resource.exporter}" do
56 dest_ports new_resource.port
57 only_if { node[:prometheus][:mode] == "external" }
60 node.default[:prometheus][:exporters][new_resource.port] = {
61 :name => new_resource.exporter,
62 :address => listen_address,
63 :metric_relabel => new_resource.metric_relabel
68 service service_name do
69 action [:disable, :stop]
72 systemd_service service_name do
78 service service_name do
85 if new_resource.service
86 "prometheus-#{new_resource.service}-exporter"
88 "prometheus-#{new_resource.exporter}-exporter"
93 "/opt/prometheus/exporters/#{new_resource.exporter}/#{new_resource.exporter}_exporter"
96 def executable_options
97 "--#{new_resource.listen_switch}=#{listen_argument} #{Array(new_resource.options).join(' ')}"
101 case new_resource.listen_type
102 when "address" then listen_address
103 when "url" then "http://#{listen_address}/metrics"
108 if node[:prometheus][:mode] == "wireguard"
109 "[#{node[:prometheus][:address]}]:#{new_resource.port}"
111 "#{node[:prometheus][:address]}:#{new_resource.port}"
117 subscribes :restart, "git[/opt/prometheus]"